Pass flags

Merge pull request apache#29 from apache/notify_on_reload

Raise notify events on reload

Keep features on config process restart

Merge pull request apache#27 from apache/fix-regex-in-key

Fix regex patterns in keys

fix tests for #1380

fix tests for #1602

config: tighten config validation

config: tighten config validation

Merge remote-tracking branch 'cloudant/support-not-persist-variants'

Fix apache#19

Merge branch 'use-callbacks-for-behavior'

Fixes apache#18